Clinical Trial: Cranial Laser Reflex Technique for Hamstring Function

U.S., Feb. 10 -- ClinicalTrials.gov registry received information related to the study (NCT03044106) titled 'Cranial Laser Reflex Technique for Hamstring Function' on Feb. 2.
Brief Summary: Purpose: To conduct a pilot study of the effect of Cranial Laser Reflex Technique (CLRT) compared with sham laser on hamstring muscle flexibility, strength, and pain pressure threshold.
Participants: Active, young adults ages 18 to 35.
Procedures: In a single, blinded crossover fashion, subjects will complete three functional hamstring tests after CLRT and after sham laser treatment. Subjects will also complete questionnaires to assess their expectations and perceptions of the interventions.
Study Start Date:
Study Type: Interventional
Condition: Hamstring Injury
Muscle Tone Increased
Muscle Pain
Muscle Weakness
Intervention: Procedure: CLRT
CLRT is a novel method of laser stimulation on specific cranial reflex points that modulate muscle tone.
Other Name: Cranial Laser Reflex Technique
Device: Thor LX2 /810nm 200mW Single Probe Laser
The treatment device to be used in this study is a Class IIIB 810nm 200mW near-infrared GAAlAS diode laser (THOR Photomedicine Ltd, Great Britain) that is currently marketed in the US. The laser probe is FDA-cleared and classified as a non-significant risk device. The spot size is 0.0364 cm2, and the treatment time is 30 seconds. Since the CRP is a line of 2 cm, for the purposes of calculating dosage, we will treat it as a series of 10 connected points each with a diameter of 2mm. With the scanning rate of 2cm/s, each "point" on the line will receive 1/10 of each pass, totaling 3s (out of 30s total) exposure time per point. The dose per "point" for this intervention is calculated to be approximately 1.65 J/cm2.
Recruitment Status: Recruiting
Sponsor: University of North Carolina, Chapel Hill
Information provided by (Responsible Party): Nicholas Wise, University of North Carolina, Chapel Hill